4. The population of a trading area is currently 100 thousand. At time t years from now population will be growing at the rate of 20 (0.5t + 9)Z thousand per year. a) What will total population be 11 years from now? b) How long will it take the population to reach 260 thousand?

Advanced Engineering Mathematics
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ISBN:9780470458365
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4. The population of a trading area is currently 100 thousand. At time t years from now
population will be growing at the rate of
20
(0.5t + 9)7
thousand per year.
a) What will total population be 11 years from now?
b) How long will it take the population to reach 260 thousand?
Transcribed Image Text:4. The population of a trading area is currently 100 thousand. At time t years from now population will be growing at the rate of 20 (0.5t + 9)7 thousand per year. a) What will total population be 11 years from now? b) How long will it take the population to reach 260 thousand?
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